/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraMeshRendererProperties.h
void ApplyMaterialOverrides ( const [FNiagaraEmitterInstance](API\Plugins\Niagara\FNiagaraEmitterInstance) * EmitterInstance, [TArray](API\Runtime\Core\Containers\TArray)< [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * > & InOutMaterials ) const